76 lines
2.5 KiB
Dart
76 lines
2.5 KiB
Dart
import 'package:easy_refresh/easy_refresh.dart';
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import 'package:get/get.dart';
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import 'package:now_wallpaper/common/components/view_state_widget.dart';
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import 'package:now_wallpaper/common/utils/obj_util.dart';
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import 'package:now_wallpaper/models/wallpaper_model.dart';
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import 'package:now_wallpaper/modules/root/root_controller.dart';
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import 'package:now_wallpaper/routes/app_pages.dart';
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class DiscoverController extends GetxController {
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static DiscoverController get to => Get.find<DiscoverController>();
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late final EasyRefreshController refreshController;
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late ViewState viewState;
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var allWallpaper = <WallpaperData>[];
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var wallpaperDataList = <WallpaperData>[];
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var todayNewestList = <WallpaperData>[];
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WallpaperModel? todayNewestData;
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/// 分类名称
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var clsName = '';
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/// 页码、每页数量
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int pageNum = 1;
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int pageSize = 10;
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@override
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void onInit() {
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super.onInit();
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refreshController = EasyRefreshController(controlFinishLoad: true);
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getData();
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}
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void getData() {
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todayNewestData = RootController.to.getRandomCls();
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if (todayNewestData != null && todayNewestData!.data != null && todayNewestData!.data!.length >= 3) {
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clsName = ObjUtil.getStr(todayNewestData!.name);
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var flatList = todayNewestData!.data!.map((e) => e).toList();
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// 随机打乱此列表中的元素，再取前3个元素
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todayNewestList = (flatList..shuffle()).take(3).toList();
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}
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viewState = RootController.to.viewState;
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allWallpaper = RootController.to.wallpaperModelList.expand((element) => element.data ?? <WallpaperData>[]).toList();
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_getDataToShow();
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}
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void _getDataToShow() {
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if (allWallpaper.isNotEmpty) {
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// 开始的索引
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int startIndex = (pageNum - 1) * pageSize;
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// 结束的索引
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int endIndex = startIndex + pageSize;
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wallpaperDataList.addAll(allWallpaper.sublist(startIndex, endIndex));
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refreshController.finishLoad();
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}
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refresh();
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}
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/// 上拉加载
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void onLoad() {
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if (pageNum == (allWallpaper.length / pageSize).ceil()) {
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refreshController.finishLoad(IndicatorResult.noMore);
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} else {
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pageNum++;
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_getDataToShow();
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}
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}
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/// 点击今日最新
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void onTapTodayNewest() {
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// 进入单个分类页面
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Get.toNamed(AppPages.singleCls, arguments: todayNewestData);
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}
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/// 点击壁纸
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void onTapItem(int index) {
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Get.toNamed(AppPages.wallpaperDet, arguments: {'position': index, 'wallpaperList': wallpaperDataList});
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}
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}
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